Trouble with nginx and serving from multiple directories under the same domain

I have nginx setup to serve from /usr/share/nginx/html, and it does this fine. I also want to add it to serve from /home/user/public_html/map on the same domain. So:

my.domain.com would get you the files in /usr/share/nginx/html
my.domain.com/map would get you the files in /home/user/public_html/map

With the below configuration (/etc/nginx/nginx.conf) it appears to be going to my.domain.com/map/map as noticed by this:

2011/03/12 09:50:26 [error] 2626#0: *254 "/home/user/public_html/map/map/index.html" is forbidden (13: Permission denied), client: , server: _, request: "GET /map/ HTTP/1.1", host: ""

I've tried a few things but I'm still not able to get it to cooperate, so any help would be greatly appreciated.

#######################################################################
#
# This is the main Nginx configuration file.  
#
#######################################################################

#----------------------------------------------------------------------
# Main Module - directives that cover basic functionality
#----------------------------------------------------------------------


user              nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log;

pid        /var/run/nginx.pid;


#----------------------------------------------------------------------
# Events Module 

#----------------------------------------------------------------------

events {
    worker_connections  1024;
}


#----------------------------------------------------------------------
# HTTP Core Module
#----------------------------------------------------------------------


http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile        on;
    keepalive_timeout  65;    

    server {
        listen       80;
        server_name  _;
        #access_log  logs/host.access.log  main;

        location / {
            root   /usr/share/nginx/html;

            index  index.html index.htm;
        }

        location /map {
            root   /home/user/public_html/map;
            index  index.html index.htm;
        }

        error_page  404              /404.html;
        location = /404.html {

            root   /usr/share/nginx/html;
        }

        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   /usr/share/nginx/html;
        }
    }
    include /etc/nginx/conf.d/*.conf;
}