I think trail would be acceptable, but not track or path. Trail here means a trail of clues. If I had to guess where the origin of trail to mean a trail of clues comes from I would guess a trail of cookie crumbs leading to find who stole cookies from the cookie jar. But perhaps I am being overly imaginative.
Not a complaint, just something that initially confused me. "Pista" or "a.pista" seems to be used in Costa Rica as an abbreviated form of "autopista," especially in bus signs. Abbreviations are a pain if you don't know the language well enough to know what they're an abbreviation of!
"Path" is a very broad term in English, that can cover anything from a well defined man-made walkway, to a vague sense of direction, to the trajectory of a planet, to a metaphorical concept. As a result there are lots of Spanish words that could be translated as "path". A couple of ones I've seen used regularly are "camino" and "sendero".
So other people encountered the same issue as me. "Pista" can be interpreted/translated as road, route, or even way. At least in real life, that's how it's used.
However, to be fair, if it's road, typically it's "autopista". But it can be used in the context of following a road (like walking) as in "estamos caminando la pista para el sur".
Just adding my 2 cents.
The Spanish word "pista" seems to always be connected with the concept that there is a specific path to follow - like a trail or circular track or a dance routine. It involves some sort of route, at least at some time in history. Even when it refers to a dance floor or ice skating rink, those activities often involve moving around in a circle or through a specific path such as a dance routine or a waltz or contra in which people follow a certain path. Also, if someone is following clues, they have a path they most go to get from one to the other.
So, IMHO, I doubt "pista" could translated as "evidence" because that particular word is more concrete, more like "facts" or material things or concepts, not a path of any type.
pista noun, feminine (plural: pistas f)
Los pilotos debían tener cuidado con la pista mojada. = The racers had to be careful with the wet track.
slope n (plural: slopes)
Me gusta esquiar en esta pista porque es muy larga. = I like skiing on this slope because it is very long.
rink n (plural: rinks)
El jugador de hockey llevó su equipamiento a la pista de hielo. = The hockey player took his equipment to the ice rink.
Los cazadores suelen seguir las pistas de los animales. = Hunters usually follow animal trails.
clue n (plural: clues)
Si encontramos más pistas, podemos resolver el misterio. = If we find more clues, we can solve the mystery.
runway n (plural: runways)
Mi avión despegará desde la pista número cuatro. = My plane will take off from runway number four.
floor n (plural: floors)
Las parejas bailaban por toda la pista. = The couples danced around the floor.
ring n (plural: rings)
El circo tenía tres pistas con distintas actuaciones. = The circus had three rings with different performances.
strip n (plural: strips)
El avión aterrizó en la pista aérea. = The plane touched down on the landing strip.
course n (plural: courses)
La carrera es difícil porque la pista está llena de obstáculos. = The race is difficult because the course is full of obstacles.
lane n (plural: lanes)
Fui a jugar a los bolos, lancé la bola por la pista e hice un pleno. = I went bowling, threw the ball down the lane and got a strike.
lead n (plural: leads)
La policía está buscando pistas para encontrar al criminal. = The police are looking for leads to find the criminal.
circuit n (plural: circuits)
El piloto de carreras dio una vuelta alrededor de la pista. = The racing driver drove a lap around the circuit.
less common: court n · hint n · green n · path n · tarmac n · alley n (bowling) · racetrack n · tip n · airstrip n · apron n · roadway n · inkling n · downhill n (skiing) · raceway n · touch n