Maps to check out

[Apache Warrior]

That is the one. I loved playing that one on The Lair. That brings back so many names of people who used to play 1.6 here.
Apache

[AmazingRedd]

de_tides was good in css.

here are a few more custom.

de_sultan2 looks great, check the video.
de_beroth
de_westwood looks legit!
de_palenque_v2

[Apache Warrior]

In CS:GO de_westwood was changed to de_wetwood, Oldtimmer did it by adding rain. He is also the one who modded de_beroth.
Another one he modded is de_fact. This was also a balanced and fun map.
GAMEBANANA: de_fact (Counter-Strike: Global Offensive > Maps > Bomb/Defuse)
Apache

[omnilicious]

That's too bad about estate, I play it pretty often still in CSGO always as a CT and I rarely lose :-P. There's only 10 or so entrances into the estate , but this is a 32 person server, so it gets a little crowded.

No idea how to find maps, but the ones I'd look for is cs_siege and de_prodigy (if they have a good original without the 30 side passages). Or with this big a server, de_dust_forever.

[Apache Warrior]

No idea how to find maps, but the ones I'd look for is cs_siege and de_prodigy (if they have a good original without the 30 side passages). Or with this big a server, de_dust_forever.

GAMEBANANA: Maps (Counter-Strike: Global Offensive)
Go here to look at custom maps. Do not forget to check things like player count and ratings.
Apache